Our market development work is important to achieving our statutory objective to promote competition in, reliable supply by and the efficient operation of the electricity industry for the long-term benefit of consumers.

If an anomalous event or outcome occurs in the market or the broader electricity sector, we investigate it to determine the causes and whether something can or should be done to prevent such an event or outcome from occurring again.

It provides a high-level overview of retail companies, distribution companies, the transmission grid, generation companies and the electricity market. It also shows how these areas interact with each other, so is a handy reference tool for those who are learning about the industry.

We have recently updated our Electricity in New Zealand publication. Electricity in New Zealand is produced every 3-4 years.

You can download a PDF from the link below.

You can request a hard copy of the updated publication by sending an email to communications@ea.govt.nz. Please include your postal address and the quantity required.